Playing-ball.



No. 7l5,206. r V Patented Dec. 2, I902.

E. KEMPSHALL.

PLAYING BALL.

[Application filed Aug. 19, 1902.)

(No Model.)

mm v 1220622202:

' EleazerJYeznpskaZl UNITED STATES PATENT OFFICE.

ELEAZER KEMPSHALL, OF BOSTON, MASSACHUSETTS.

PLAYING-BALL.

1 SPECIFICATION forming part of Letters Patent No. 715,206,- dated December 2 1902.

Application tiled August 19, 1902. Serial No. 120,193. (lilo model.)

To all whom it IMAM/0072168771,: I I

Be it known that I, ELEAZER KEMPsHAL manufacturer, a citizen of the United States, residing at 41 High street, in the city of Boston, county of Suffolk, and State of Massachusetts, have invented certain new and useful Improvements in Playing-Balls, of which the following is a specification.

My invention relates to improvements in playing-balls, and has for one of its objects to provide a ball which shall have its weight accurately centered, thereby rendering it truer in its flight than playing-balls as heretofore constructed.

A further object of my invention is to dispense with the use of a center piece, as already described in the specifications filed with my previous applications.

According to my present invention I dispense with the hard core and provide in place thereof a core or filling composed of ahighlyelastic substance, preferably in the form of rubber tape, ribbon, strips, or threads,which is coiled or wound under severe tension and inclosed in cups or hemispheres of plastic material, the whole beingthen subjected to high pressure. In same cases I may form the aforesaid coil or winding in two or more concentric portions, between which I may interpose a bulb 01' shell of celluloid, guttapercha, or similar hard but resilient substance.

In order that my invention maybe clearly understood and readily carried into efiect, I will now describe the same more fully with reference to the accompanying drawings, in which Figure 1 is a view, partly in section, of one form of playing-ball constructed in accord an-ce with myinvention. Fig. 2showsa piece of the elastic material before being wound I into a core. Fig. 3 shows the inner part or core of the ball with the cover or shell re-- moved. Figs. 4 and .5 illustrate the preferred form of my invention.

Referring to the drawings, a a are strips, ribbons, or tapes of a hi ghly-elastic substance, preferably rubber, wound or coiled under extreme tension to the required shape and size to form the inner part or core of my im-' proved ball, as shown in Fig. 3.

The material for forming the inner part or core may be in the form of a strip consisting is desired to wind the material under a very' high tension and to produce a hard but comparatively resilient inner part or core.

AArepresenttheouter-shellorcoverformed ofcups orhemispheres of aplastic substance, such as gutta-percha, in which the inner part or core of the ball is inclosed.

In the preferred form of construction shown in Figs. 4 and 5, a a represent the internal hollow bulb or shell interposed between the windings a a. In this case the winding of the inner port-ion of the core proceeds until it has reached any desired diameter, preferably about one inch, and is then placed between the halves or hemispheres a a of said bulb or shell. The winding of the elastic material a over or outside of these hemispheres is then resumed, and owing to the high tension at which it is wound the edges of the said cups or hemispheres are brought closely together, so as to firmly grip the inner portion of the core. The winding of the rubber strips upon the outside of the hemispheres o, a. continues until the core reaches approximately the di ameter shown in Fig. 3, when it is inclosed in the cups or hemispheres A A and subjected to pressure.

What I claim, and desire to secure by Letters Patent of the United States, is

1. A playing-ball com prisinga plurality of hard shells and having its central portion composed of highly-elastic material wound under tension and also having soft elastic material between said shells.

'2. In a playing-ball the combination of an external shell, an inner shell, -a layer of soft springy material between said shells, and a filling for said inner shell comprising mullitudinous windings of highly-tensioned elastic material, substantially as described.

3. In a playing-ball, the combination of an external shell, a plurality of spheres therein each consisting of concentric windings of elastic material under tension, and means for lieepin'g'saidspheres separate from each other, substantially as described.

4. In a playing-ball, the combination of an external shell, a plurality of concentric spherical windings composed of highly-tensioned elastic material, and a shell of hard resilient material between said windings,substan tially as described.

5. In a playing-ball, the combination of a winding of highly-tensioned elastic material forming the core of the ball, a shellof hard resilient material inclosing said winding, a winding of highly-tensioned elastic material exterior said shell, and another shell inclosing said second winding, substantially as described.

6. In a playing-ball the combination of a plurality of windings of highly-tensioned elastic material,hemispheres ofhard resilient material interposed between said windings and adapted to firmly grip the inner winding, and hemispheres of plastic material exterior to said windings and welded together at their edges by pressure, substantially as described.

7. A playing-ball comprising a core of tense windings of rubber, a thin hard shell thereon, a softer layer of resilient material upon said shell, and a hard cover.

8. A playing-ball comprising a core of tense windings of rubber, a thin hard shell thereon, a softer layer of resilient material upon said shell, and a hard cover holding said resilient material under compression.

9. A playing-ball comprising a core consisting of tense windings of rubber, a thin hard springy shell thereon, tense windings of rubber upon said shell and a cover of hard plastic material.

10. Aplaying-ballcomprisingacoreconsisting of tense windings of rubber, a hard flexible shell thereon, tense windings of rubber upon said shell, and a cover of hard plastic materialholding the same under com pression.

11. A playing-ball comprising a core of soft resilient material, a thin hard shell thereon,

tense windings of rubber upon said shell, and a cover of gutta-percha.

12. A playing-ball comprising a core of soft resilient material, a hard springy shell thereon, tense windings of rubber upon said shell, and a cover of gutta-percha holding the same under compression.

13. A playing-ball comprising a core of soft rubber, a shell thereon of harder plastic material, a softer layer of resilient material upon said shell, and a hard cover.

14. A playin g-ball com prising'a core of tense windings of rubber, a flexible celluloid shell thereon, a softer layer of resilient material upon said shell, and a hard cover holding said resilient material under compression.

15. A playing-ball comprising a core consisting of tense windings of rubber, a flexible celluloid shell thereon, tense windings of rubber upon said shell, and a cover of hard plastic material.

16. A playin g-ball comprising a core consisting of tense windings of rubber, a flexible celluloid shell thereon, tense windings of rubber upon said shell, and a cover of hard plastic material holding the same under compression.

17. A playing-ball comprising a core of soft resilient material, a celluloid shell thereon, tense windings of rubber upon said shell, and a cover of gutta-percha.

18. A playing-ball comprising a core of soft resilient material, a celluloid shell thereon, tense windings of rubber upon said shell, and a cover of guttapercha holding the same under compression.

In testimony whereof I have hereunto set my hand, in presence of two subscribing witnesses, this 8th day-of August, 1902.

ELEAZER KEMPSHALL.

Witnesses:

EDWARD LAKE, W. M. HARRIS. 

